Data Exchange
Introduction
The Data Exchange provides Flywheel Enterprise users a powerful and efficient way to supplement their existing datasets. Users can browse a catalog of diverse, high quality, publicly licensed datasets and import chosen data, pre-curated and ready for analysis, to a specific Flywheel Enterprise instance.
Datasets on the Data Exchange are organized according to Flywheel’s hierarchy, classified consistently by modality, anatomy, contrast, and orientation and enhanced with additional metadata (e.g. cohort demographic information) where possible.
The Data Exchange provides the biomedical research community a solution to find high quality, curated data that meets targeted cohort demographics, modalities, and other statistical characteristics across multiple organizations, studies, or projects.
Features
The Key Features are as follows:
- Access to a growing catalog of publicly licensed datasets
- e.g. Datasets published on The Cancer Imaging Archive (TCIA), Brain Tumor Segmentation (BraTS), Autism Brain Imaging Data Exchange (ABIDE), Medical Segmentation Decathlon
- Dataset summaries
- Data description and purpose
- Cohort demographic information
- Data format and modalities
- Project metadata
- Catalog search capabilities
- Full free text search
- Taxonomy filters
- Import capabilities
- Direct import to Flywheel Enterprise sites
- Elimination of data staging, ingestion and curation
- No data movement
Constraints
N/A
Problems and Resolutions
The Data Exchange addresses the following problems:
- Finding high quality, curated data is challenging
- Larger, more diverse data cohorts are needed for Research and Development (R&D)
- Physically moving data from site to site is limiting productivity
- Transfer agreements
- Extra PHI risk
- Extra cost
The above challenges are resolved by the Data Exchange as follows:
- A decentralized platform that catalogs data
- High quality Real World Data (RWD)
- Easy access to curated data
- Data is referenced in place
- Low impact on data footprint
- Cost savings in data storage
Instruction Steps
Navigating to the Data Exchange from Flywheel Enterprise
Once signed on to the Flywheel Enterprise platform, go to the left hand bar on the page and scroll to Collaboration as seen below.
Now select the Data Exchange option under Collaboration.
The Data Exchange Homepage should now display on the screen as shown below.
Browsing the Data Exchange Catalog
Dataset Summary Tiles
On the Data Exchange Homepage, one can view all of the available Datasets in the form of Dataset Summary Tiles. Dataset Summary Tiles provide a quick glimpse into the datasets as seen below.
The following information is included with each dataset:
- Dataset name
- Access type
- Data provider logo and name
- Version number and date
- A snippet of the dataset description
- File types
- Dataset size
- Number of subjects
Dataset Details Page
Once a Dataset Summary Tile is clicked, the Dataset Details Page for the selected dataset will be displayed with the following information:
- Data provider
- Version number and date
- Import button and dataset size
- Keywords
- Dataset description
- Subject, Session and Acquisition counts
- File types
- Modalities
- Cohort demographic information
The image below highlights certain information on the Dataset Details Page.
Dataset Resource Information
The bottom portion of the Dataset Details Page includes a section for Contacts, Citations/Publications and License as shown below.
Importing Data from the Data Exchange
One can import a dataset from the Dataset Details Page. The Import button is located at the top right of the page.
Once the Import button is selected, the Import Dataset dialog for providing the destination of the import will be displayed.
Start by Selecting a Group from the drop down box as shown below.
Then provide a Project Name/Label for the dataset.
Import Progress Bar
Once the boxes are populated, click on Import. It will display the progress being made to import the dataset as seen below.
Once it has completed importing the dataset, it will display as Imported.
Dataset Imports Dashboard
One can navigate to the imported dataset from the Dataset Imports Dashboard located on the homepage. The image below displays that the data has been successfully imported by showing a green folder icon with a checkmark seen on the right hand side.
Once the green folder icon is clicked, the corresponding Project page will be displayed as shown below.
Searching for Data on the Data Exchange
At the top center of the Data Exchange Homepage is a Search Bar option that will allow one to pull up desired information within a dataset. Type in one or more terms in the Search Bar to produce results.
Below the Search Bar, there are filter selections that one can choose from as displayed below.
Search Results Page
After entering one or more terms in the Search Bar, the Search Results Page will render datasets that match any of the provided terms.
As an example, the user searched with the word Breast to produce results shown below.
Once on the Search Results Page, one can refine the results by using filters that are positioned on the left side of the page. The Filter Menu provides a wide range of options including Anatomy, Ethnicity, File Type, License Type, Modality, Organ System, Race, Sex, Therapeutic Areas and Type. After selecting one or more filters, the Search Results Page will render datasets that match all of the selected filters.